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DTC P2271 O2 Sensor Signal Stuck Rich (Bank 1/Sensor 2): DTC Detecting Condition
DTC DETECTING CONDITION CHART
| Item |
Detecting Condition |
Detecting Condition |
| DTC Strategy |
- Plausibility check during shift of lambda setpoint to rich or lean
|
- Poor connection or damaged harness
- Rear HO2S
|
| Enable Conditions |
- No fuel cut-off
- No full load phase
- No fuel trim error detected
- Delay time to start diagnosis : 13 ~ 30 sec, depending on operation point
- 11V < Battery voltage < 16V
- No relevant failure
|
| Threshold Value |
- Rear HO2S signal > 0.2 V when lambda set point = 1.15
|
| Diagnostic Time |
|
| MIL On Condition |
|